Uber Driver swears at client

On Sunday the 28of November U book a Uber from my work to my home and it shows me R45 when i get to my home then when i wanted to pay the R45 the driver told me that it is R49 I show him my Total and then he said I must pay what his totale says so I told the driver how can the app shows R45 on my side and R49 on his side then he told me i must not be f stupid is that how uber treat the client?bu saying your are stupid?